Fort Worth daily gazette. (Fort Worth, Tex.) 1882-1891, 1887-10-03
POPULAR SCIENCE.
Items OF Discovory and Invention from
Various Sources

.
Various Sources {
NJ. Gerboz has devised an apparatus
by which an audible end visible signal is
given to the engine-driyer if any part OF
TIE machinery 10 which the apparatus Is Z
fitted should become unduIy rot. In It's
simplest form, as applied to the crank
p!n Of q steam engine, the device coz
sists q small cylinder fastened to SID {
from the crank-pin, and cor
timing 8 plug OF egsily iusi5ie silO+,
which IS pressed against the end OF tie
Crauk pin By q perforated piston and
spring The pist0u-rOd controls by moSus
ui & lever I CatCh belonging 10 the
mechanism Of bell placed over The appa-
Tatus. The ge2r Il tie bell, which is &c
tusted by spring power, is previously
wound ~ by hand 8nd locked bV the
catch if the crank pin should heat, the
tusibIe peg meIts, thus GLOWING the pls-
ton 70 descend, thereby releasing the
catch aad sounding the bell. II addition
to this audible signal disk underneat1
the yeII IS turned in such s position thst
g bright color is seen through two holes
in the disk Of the bell Industries.
TIE beautiful damaskecned surface ex-
hibiJed by the Wo3Iwich and EisWIck !
steel guns, says an exchange, is achieved |
by means q 6 special solution composed I
Of the following Ingredients: Two /
ounces al tiHc.ure Of steel, one ounce /
nitric ara one ounce copper sUlpnlte, /
one AID Onc-halt ounces spirits Of nl.re, !
one end Oae-aaI ounces spirits Of vine, /
and GGG @al!3c g water. This sGlu ion /
is sm aTed over the pGrts, aud when dry /.
alCtheI cUar is put Oh, tire result being = /
file brown color, WL.c1 & not dark +
enough, is made SO ~ 4 rep
e.iuoc o. t1e operation, six
coats being sufficient to make the
su7fzcG black. The acid is then Killed
by washing with soda solution ard the
whole rubbed with hard brush Of ode
card" until smooth, alter which II is rub
bed witG oily waste. Ctler solutions for
this pUrpcse gre in use az some estsh-
/ lIshmants CT high re9u.e, Que q tEe most
( important Gf these consisting Of a mixture
/ OF enc ounce each Of sulphur. fracture Of
/ steel, nitric Gcid and spirits Of nicrg, with
One-fpUItnOU ounce suiphuric Gcid, one-hGis
ouCce e2ch OF merCuCiG chloride and COP
! per 81. rh1te, aad one quar-, Ct water.
I During thu recent meeting OF tie Amer
+ !csu Association for the aQVanc en- ut O.
/ Science, 6eId in New York, Mr. +. S.
/ Psase cead "a lengthy paper on the honey
/ be- plans This plant is of t1istle-ike
/ growth, Gud possesses 3 great attraction
! for bees. G1r. Peaze discovered some
( time ago that the seeds contained consia-
/ cradle vegetable Oil. lie made an iLYas-
tigelQn. and finding 1hct the seeds could
readily ne beaten from the balls, auG that
! Gheg ne. e iGN Of OIL, he csyne to The cor
cIUsioa that the plant mignt some
day h 5lG L prominent piece Is sn oil pro-
Queer in The commercial world. Alter
making experiments. Mr. PeGse found
That the Oil YVES equal 10 the best linseaG
oil, bG. mere ike pOppy-seed Gil. The
reslduUIa OF the hCneY-1lG plant sctt
possesses qualities closely allied to qvi-
nine, and the taste and effect are a.
MOST similar Each plant Desrs from
twenty to thirty balls and innGmera ole
seeds. It is quite prolific throughout the
state q New YORK, and the cost is very
small. The American Association viii
take up the consideration Of the subject
snd niGHe test Of the qualities Of tie
plsn..
Mr. Csrl Herring OF this city, writing 70
the Electrical World, SAYS: ct - 4 well
: known fact hat quantity OF electricity
measured III COuicmbs never IA generated,
/, never "a consumed, and never does grow
= less, excepting les&Gge. TIE current
h5wiDs out of q lamp IL exactly the same
: III quantity f. thst going III It, the same
: = true G: motors and OF generators, show
ing that electricity OF Itself is neither con
spmed while doing worS, nor is it gen
Grated. Alter doing work in & lamp u
motor i cones out in precisely the same
: quantity IS II entered. i bgtIery is not
zble to generate quantity or couombs OF
= electricity; ell j. is able TO 90 is 70
; take he quantity which pours in st one
/ pole snd send It out ct TIE otner pole
: with al increased pressure, or L II II .
{ Electricity, therefore, is nc. merely force
E COR s form Of energy, gu: matter. 1t is
: precisely analogous 10 water in wzter
= circuit. The weter is neither consumed moi
5 generated. The pump merely increases
e the pressure OF the water which flows ip
c NJ one end. The water moter merely
consumes the pressure srd converts i
5 into mechanical work of another Kind
I 1t does not consume the water The
J., quantity OF water, measured il units .!
: quantity, - the s2ne 10 81 parts Of 5
: closed circuit Of water"
e The experiments made by NJ. MonIen-
e bruck seem 20 show that in the mesmeric
: condition al electric current NAY have G
: powerful inductiye action upon the hu.
man nerves. These experiments were
D made, as reported, With an apparatus con
G sisting OF ring OF iron wires wound VIII,
= siik covered copper, the latter placed il
d circuit With microphone and battery
: cell. The ring wss about nine inches il
G diameter. In the first experiment
j watch was placed near the nicrogaont
I 49, TIE .i"g placed uGca - go =